A simple but useful idea… a small light with a sort-of-twisty handle, like a bungy cord. This Double-Back light from Brunton can be attached to your backpack, your gear, your bike, your hat, your finger, your walking stick or whatever, and it both flashes and holds a solid beam for up to 80 hours. The only thing complicated is the product’s name, but otherwise this is a good addition to your daypack.